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Elite Veteran
Posts: 1018
Location: Milwaukee Wisconsin | say guys ! what would cause a wheel cylinder not to bleed correctly ? I mean.......... when you crack the bleeder screw with someone holding down the brake pedal and then you open up the bleeder and it won't shoot a nice stream of fluid out. theses are all new cylinders replace and hoses too. car is a 54 dodge royal .. all wheel cylinders have been replaced fronts and rears. I have issues with the brakes hanging up and pulling side to side . system has been bled several times . master is old and the shoes are old also and they were wet with brake fluid and are weaping some from over the years . I need to replace the shoes next. I know that can cause a pull to either side . .. |
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Expert
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Location: Chestertown, NY ( near Lake George) | Ok so only one won't bleed , disconnect that line see if fliud reaches the cylinder. |
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Expert
Posts: 1488
Location: New Castle PA | I've seen a lot of cylinders in recent years that opening them a "crack" won't allow fluid out. Give it a real twist out and I'll bet she'll flow. |
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Board Moderator & Exner Expert 10K+
Posts: 13049
Location: Southern Sweden - Sturkö island | If the brake cylinders are "yellow", then perhaps there's no hole in the bleeding channel? |
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Elite Veteran
Posts: 873
Location: ALABAMA, HEART OF DIXIE | dodge59 - 2014-10-11 9:06 PM . I have issues with the brakes hanging up and pulling side to side . system has been bled several times . master is old and the shoes are old also and they were wet with brake fluid and are weaping some from over the years . I need to replace the shoes next. I know that can cause a pull to either side . It's your BRAKES man ........ piece meal is NOT the way to go about it. Replace everything, including the rubber hoses. Be sure to bench bleed the new master cylinder. Then leave the wheel cylinder bleeder screws loose, very loose, and allow the system to gravity bleed. It won't take long. Then tighten the bleeder screws. At that point you should have a pedal. Next bleed the wheel cylinders in this sequience ....... RR-LR-RF-LF. Here is a tip....... NEVER open a bleeder screw with pressure on the brake pedal....... open the screw..... then SLOWLY, push the brake pedal to the floor and hold for a moment before closing the screw. then release the brake pedal. Keep a close watch on the master cyl fluid level. Good luck. |
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Expert
Posts: 2289
Location: Eastern Iowa | Shoes are wet w/brake fluid and you are wondering why they grab!!!!????
Replace them, they are junk now. |
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Expert 5K+
Posts: 8443
Location: Perth Australia | "NEVER open a bleeder screw with pressure on the brake pedal....... "
I was taught when bleeding brakes, thet you DID open them with pressure behind the bleeders?
You know, pump pump pump, then hold the pedal on the down stroke and as the bleeder is opened, the pedal travels to the floor.
But as said above, it sounds like your car needs a brake overhaul, not a bleed up
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Expert
Posts: 3396
Location: Chestertown, NY ( near Lake George) | Problem with the pump up method if you have an older m/c you are moving the piston and seal into a new area in the bore that may have some rust, this will damage the seal, vacuum bleeders prevent this. |
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Elite Veteran
Posts: 873
Location: ALABAMA, HEART OF DIXIE | ttotired - 2014-10-13 6:14 PM "NEVER open a bleeder screw with pressure on the brake pedal....... " I was taught when bleeding brakes, thet you DID open them with pressure behind the bleeders? You know, pump pump pump, then hold the pedal on the down stroke and as the bleeder is opened,
Nope........ thats an old wives, (mechanics) tale. By pumping the pedal the remaining air is pushed back into the system, (airyates), and that makes it tough to complete the process. Open bleeder ......... then a slow, steady depression of the pedal with a short pause, and close the bleeder. |
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Elite Veteran
Posts: 1018
Location: Milwaukee Wisconsin | <p>Thanks guys .. my car is a 54 dodge royal pacecar . the master is under the floor board by my feet so you can't really gravity bleed this system.. I never heard of bleeding the way you describe. I was always taught to pump it up , hold down tight and open bleeder , then tighten and then release your foot off the pedal. The shoes are saturated with fluid so I ordered up a new set from andy berbaum. by the way I took all the new cylinders apart and blew out everything .. all looked good inside. then bled them again and that lf frt . bleeder that was not bleeding started to bleed again . go figure. I sucked out the fluid and went in with my visual picture scope to see what the the insides looked like and no debris and clean as a whistle.. as of right now ........... after bled again ........... the pedal feels right where it should be........ close to the top .. does not bleed down and holds pressure really well. just waiting now to install the new shoes and see how it feels then.</p>
Edited by dodge59 2014-10-14 11:56 AM
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Elite Veteran
Posts: 1018
Location: Milwaukee Wisconsin | brake problem solved
You would not believe it.. all it was , was the oil saturated old brake shoes. I installed the new shoes and it has no problems at all. wow !
write that down in the books !
Thanks guys ! |
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Expert 5K+
Posts: 8947
Location: WHEELING,WV.>>>HOME OF WWVA | so , you installed new brake shoes and that solved the non bleeding wheel cylinder problem ---------------------------------------later |
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Elite Veteran
Posts: 1018
Location: Milwaukee Wisconsin | 60 dart - 2014-10-18 10:28 PM so , you installed new brake shoes and that solved the non bleeding wheel cylinder problem ---------------------------------------later
sorry .. chuck...
There was more to the story on the wheel cyl. I was doing a brake on the front shoes and could not get that bleeder to bleed for some reason.. did not really figure out that problem was but............ but after rebuilding the cyls apart again it started to bleed making sure everything was clean and clear . go figure.
sometime old car are just stubborn . |
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Elite Veteran
Posts: 873
Location: ALABAMA, HEART OF DIXIE | dodge59 - 2014-10-18 6:55 PM brake problem solved , was the oil saturated old brake shoes. I installed the new shoes and it has no problems at all. wow ! write that down in the books ! Thanks guys !
Replacing fluid soaked shoes has been in the books since there was books. Nothing new..... It's called correct procedure. Glad you got them working ....... you sure did it the hard way. Most likely the bleeder screw that would not bleed was obstructed in the first place.
Edited by rockerarm 2014-10-20 1:53 PM
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wheel cylinder won't bleed
